Alarm 134 — Low Supply Airflow

What does Alarm 134 mean?

This alarm code is triggered if the actual airflow is less than the target percentage (set by Parameter 234) for longer than the duration set by Parameter 235. This indicates insufficient airflow is being supplied.

• Partially blocked air filter.
• Undersized ductwork.
• Blower speed is too low.
• Leaks in the supply ductwork.
• Incorrect setting for Parameter 234 or 235.

Click steps to track your progress.

1. 1

   Check and replace the air filter if dirty.

2. 2

   Inspect ductwork for obstructions or leaks.

3. 3

   Verify blower speed settings.

4. 4

   Review the settings for Parameter 234 (Advanced Airflow Low Speed CFM Alarm Set Point) and Parameter 235 (Advanced Airflow Low Speed CFM Alarm Evaluation).

5. 5

   If airflow issues persist, consult with an HVAC professional.